The length measurements have a .05"
tolerance.Panel Screws are used to mount panels, shelves or other 19 inch
equipment to 19 inch racks. The 12-24 size is mostly found on relay racks like
our PR7200-AL. However, the 10-32 thread is more
popular with cabinets and wall mount racks, for a 10-32 thread screw, click here.